package net.spatula.tally_ho.jpa;

/* Copyright 2006 Nicklas R Johnson
 * Licensed under the Apache License, Version 2.0 (the "License"); 
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and 
 * limitations under the License.
 */

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;

public class ResourceManager {

    private static ResourceManager instance;

    private EntityManagerFactory emf = null;

    private ResourceManager() {

    }

    public synchronized static ResourceManager getInstance() {
        if (instance == null) {
            instance = new ResourceManager();
        }
        return instance;
    }

    public EntityManagerFactory getEMF() {
        if (emf == null) {
            emf = Persistence.createEntityManagerFactory("foo");
        }
        return emf;

    }

    public EntityManager getEM() {
        return getEMF().createEntityManager();
    }

}
